ROLLINS RANCH

Oil // district 2 // lease#8788

op: FIRST ROCK, INC.

cum_oil

1k BBL

cum_gas

0 MCF

wells

1

production

2003-05 — 2012-10

peak_month

2003-05

-- production_history

cum_oil: 1,301 BBL cum_gas: 0 MCF

-- decline_curve_analysis

qi

555 BBL/mo

Di (annual)

841.6%

b-factor

0.2

EUR

1,017 BBL

R-squared

0.967

type

hyperbolic

-- wells (1)

WELL#APIOPERATORPERMITSDEPTHLAST_ISSUED
1AFIRST ROCK, INC.26,2002003-04-24
EOF // data source: Texas Railroad Commission // 2026